Originally Posted by phunkymama

They look cool, but they're definitely engineered for a totally flat landscape. Shoot, before you go throwing any kids in there, the thing weighs over 80 pounds, and it only has 7 gears.

Here's a great review from someone who lives in terrain similar to ours in southeastern PA:
Winther Kangaroo Bike — the one-year review « Musings from a Stonehead